Finished
The Effect of Prolonged Inspiratory Time on Gas Exchange During Robot-assisted Laparoscopic Surgery With Steep Trendelenburg Position : A Crossover Randomized Clinical Trial
NCT02966535 · Seoul National University Hospital · Updated 14 March 2019
- What is being tested
- Adjustment of Mechanical Ventilator Inspiratory to expiratory time ratio (1:2 to 1:1); Adjustment of Mechanical Ventilator Inspiratory to expiratory time ratio (1:1 to 1:2)
- For
- Prostatic Neoplasm; Urinary Bladder Neoplasm
- Kind of study
- Tests a treatment or device on volunteers. No drug phase (a device or procedure study).
- Who can join
- Ages 20 years to 90 years. About 32 people. The full rules are on the registry page.
- Where
- South Korea
- When
- Starts or started Nov 2016, ends April 2017. Registered 17 Nov 2016.
- Results
- None posted yet.
In the researchers' words
Gas exchange disturbance frequently occurs in steep Trendelenburg position during robot-assisted laparoscopic prostatectomy or cystectomy. Due to increased intrathoracic pressure and absorbed carbon dioxide (CO2) gas insufflated into abdominal cavity, hypercapnia as well as hypoxia may occur. Inverse ratio ventilation or prolonged inspiratory time during mechanical ventilation has been reported to be improve gas exchange in adult respiratory distress syndrome. The investigators attempt to test the hypothesis that prolonged inspiratory time may improve the gas exchange during robot-assisted laparoscopic urologic surgery.
Sites
- Seoul National University HospitalSeoul, South Korea